Resilient valve



Fig.

INVENTOR Norman Potash ATTORNEY United States Patent Ofifice 3,063,452Patented Nov. 13, 1962 3,063,462 RESILIENT VALVE Norman Potash, 3314Devonshire Drive, Baltimore, Md. Filed June 23, I960, Ser. No. 33,406 2Claims. (1. 137-223) (Granted under Title 35, US. Code (1952), see. 265)The invention described herein may be manufactured and used by or forthe Government of the United States of America for governmental purposeswithout the payment to me of any royalty thereon.

This invention relates to a device designed to be a valve forpressurized containers such as lift rafts, air mattresses, tubelesstires and the like. This device consists of an integral piece of anelastomer operatively associated with an inlet plastic or metal tube oradapter.

The device is relatively simple in design and operation; hence, itpossesses obvious commercial advantages over the prior art devices. Forexample, no complex internal valve parts are necessary for this valve ascontrasted with the prior art devices. In the assembly of the deviceinto the container all that is required is a simple rod to push theintegral valve through the somewhat narrower opening of the containerwall. This is facilitated by the conical section on the bottom of saidvalve.

Applicants prior Patent 2,845,203, issued July 29, 1958, represents asimilar device but it is structurally different than the instantinvention.

In the drawings:

FIG. 1 shows a cross-sectional view of the valve in place in thecontainer.

FIG. 2 shows a cross-sectional view of the valve during filling.

FIG. 3 shows the elastomer portion per se.

FIG. 4 shows a cross-sectional view of FIG. 3 at 44.

FIG. 5 shows a modified view similar to FIG. 4.

In the drawings the valve is represented by 1. The adapter tube is shownby 2. The valve 1 is shown in FIG. 1 sealed to the container by theinherent resiliency of the valve 1 and the fluid pressure in thecontainer. The axial hole 4 in adapter tube 2 is connected to the radialopenings 5 in adapter 2. The adapter has an en larged portion adapted toslide in the enlarged hole 6 of said valve 1. The lower portion 11 ofthe adapter is also free to slide in the valve 1. The webs 7 connect theupper portion 8 to the lower conical portion 9 and the spaces betweensaid Webs define inlet openings 12. for the admission of a fluid as isshown in FIG. 2. The number of webs 7 can be of any convenient number ascan be seen by FIGS. 4 and 5. Alternatively, the valve can bemanufactured as a unit with no openings 12 and the holes added later bypermanently deforming the elastomer.

In operation, one attaches an air hose or the equivalent to the adapter2 thereby depressing said adapter downward against the resilient conicalportion 9. This action results in the unsealing of holes 5 to permitentry of the air or other fluid which is to be inserted into thecontainer as is shown by FIG. 2 of the drawing. The downward movement ofthe adapted also causes the enlarged portion of the adapter to pressdownward on the upper portion 8 of valve 1, thus preventing leakageduring the filling operation. Upon completion ofthe filling operation,the air hose is withdrawn and the inherent resiliency of the valve pullsthe lower portion back against the container Wall thus sealing thecontainer at 10 The accompanying figures of the drawings are presentedfor illustration only and are not to be taken as limitations of theclaims.

I claim:

1. A valve for positioning in an opening in a rigid wall comprising aresilient body including an upper portion, an extensible centralrecessed portion and a lower portion, said body having a blind axialopening through said upper portion and recessed portion and projectinginto said lower portion, said axial opening having an enlarged sectionof greater diameter within said upper portion and said central recessedportion having radial openings connecting with said axial opening, arigid inlet tube disposed within said axial opening, said inlet tubehaving a centrally enlarged portion corresponding in diameter to saidenlarged section in said axial opening but of less axial length thansaid enlarged section to provide for limited axial movement of saidinlet tube within said axial opening, said inlet tube having radialopenings near the end adjacent the lower portion, said radial openingsin said inlet tube being normally exposed to said radial openings insaid recessed portion when said inlet tube is depressed axially intosaid body portion.

2. A valve comprising a resilient body including an upper portion, anextensible central recessed portion and a lower portion, said bodyhaving a central blind axial opening through said upper portion andrecessed portion, said axial opening having a section of different widthwithin said upper portion, said central recessed portion having radialopenings communicating with said axial opening, tube means in said axialopening of a width which varies according to the width of said axialopening in each section but of less axial length to provide for limitedaxial movement of said tube means within said axial opening, said tubemeans having radial openings near the end adjacent the lower portionwhich communicate with said radial openings in said recessed portionwhen said tube means is depressed axially against said lower bodyportion and normally closed when said tube means is in its normalposition.

References Cited in the file of this patent UNITED STATES PATENTS1,218,252 Gibney Mar. 6, 1917 1,930,040 Crowley Oct. 10, 1933 2,845,203Potash July 29, 1958 FOREIGN PATENTS 1,002,623 France Nov. 7, 1951

